Tod Chretien is a diagnostician at Ralph’s Transmissions in Modesto California and president of the Transmission Rebuilder’s Network Worldwide (TRNW). Noise filters are available at the TRNW online store at www.trnw.net.

There are many things that can cause torque converter clutch (TCC) cycling on Dodge diesels, from poor grounds to a failed fuel pump or a plugged fuel filter.
Disconnecting the battery will almost always cure the problem for a couple months. The reason disconnecting the battery seems to correct the problem is because it resets the PCM’s adaptive memory. But after the vehicle is on the road fo...